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Steve Tr

Truss Rod Adjustment

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I have a '74 Les Paul Custom that I was trying to adjust the Truss Rod to get less bow in the neck (she is too flat, getting string buzz). The clearance when I capo the first fret and hold down the 6th string on the last fret, measuring at the 8th fret clearance between the top of the fret and bottom of the string is greater than .008” but less than .009". When I turned the adjuster nut counter clockwise to let her out a little, the nut spun free on the threads of the truss rod. What now?

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A couple of points to note....

 

If the neck is too flat, more bow is required

 

Hold the string down at the body/neck join fret rather than the 'last' fret

 

Consider raising the bridge to counter fret buzz

 

An experienced guitar tech may detect high spots causing fret buzz.....

 

V

 

:-({|=

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When I turned the adjuster nut counter clockwise to let her out a little, the nut spun free on the threads of the truss rod. What now?

 

Bring the strings back up to tension and let it set-in for a day or so. Without tension on the truss rod the string tension will EVENTUALLY bow the neck, then you can tighten the truss rod nut back down to where you want it.

 

It will also only HELP expedite this process if you play the guitar during this set-in period.

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A couple of points to note....

 

If the neck is too flat, more bow is required

 

Hold the string down at the body/neck join fret rather than the 'last' fret

 

Consider raising the bridge to counter fret buzz

 

An experienced guitar tech may detect high spots causing fret buzz.....

 

V

 

:-({|=

 

There are at least two frets that are a little high. I used the StewMac rocker method over three frets to find them. They arn't to high, just a little, but I'm sure high enough to help with the buzz.

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Bring the strings back up to tension and let it set-in for a day or so. Without tension on the truss rod the string tension will EVENTUALLY bow the neck, then you can tighten the truss rod nut back down to where you want it.

 

It will also only HELP expedite this process if you play the guitar during this set-in period.

 

Would it help to tune up a step or two during this process?

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